Introductory Biology

(ELS) features over 4,600 specially commissioned, peer-reviewed and citable articles spanning the entire spectrum of the life sciences. It is an essential read for life scientists and a valued resource for undergraduates, graduate students and researchers. ELS articles are written by leaders in the field to provide comprehensive and authoritative coverage of each subject area. ELS is updated by approximately 400 articles per year, with new articles publishing on a monthly basis.

A research database providing easy access to a wealth of full-text, science-oriented content. Designed to meet student researcher's needs, Science Reference Center contains full text for hundreds of science encyclopedias, reference books, periodicals and other reliable sources. In addition, the database includes a vast collection of images from sources such as UPI, Getty, NASA, National Geographic and the Nature Picture Library.